Mercurial > hg > Members > kono > nitros9-code

view lib/kreiderclib/rand.as @ 3226:9749d0dfc4a2

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Changed a puls PC to rts to save cycles
author David Ladd <drencor-xeen@users.sourceforge.net>
date Sat, 20 Jan 2018 19:32:22 -0600
parents 1647f1874cdf
children
line wrap: on
line source

* Disassembly by Os9disasm of rand.r

* class D external label equates

D0000 equ $0000 

 section bss

* Initialized Data (class G)
G0000 fcb $00 
 fcb $00 
 fcb $00 
 fcb $01 

 endsect  

 section code

rand: pshs  u 
 leax  G0000,y 
 ldd   ,x 
 ldu   2,x 
 pshs  d,u 
 leax  >L003d,pcr 
 lbsr  _lmul 
 ldd   ,x 
 ldu   2,x 
 pshs  d,u 
 leax  >L0041,pcr 
 lbsr  _ladd 
 leau  G0000,y 
 ldd   ,x 
 ldx   2,x 
 std   ,u 
 stx   2,u 
 anda  #$7f 
 puls  u,pc 
srand: leax  G0000,y 
 ldd   2,s 
 std   2,x 
 clra   
 clrb   
 std   ,x 
 rts    
L003d fcb $41 
 ldb   #$4e 
 fcb $6d 
L0041 neg   D0000 
 leax  -7,y 

 endsect